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- Description
Lonsdor LT21-07 Smart Key PCB Board for Lexus 8A-B6 Board 6100:
The Lonsdor LT21-07 Smart Key PCB Board is designed for newer Lexus smart key applications using the 8A-B6 system and compatible Board No. 6100.
The LT21-07 supports configurable frequency and button values, allowing professional locksmiths and key shops to prepare the PCB for different compatible Lexus smart key configurations.
Supported frequencies are 312.09 / 314.35 MHz and 433.58 / 434.42 MHz, with 312.09 / 314.35 MHz as the default configuration.
The PCB can be generated using compatible Lonsdor devices including the Lonsdor KW100 Smart Key Generator and Lonsdor K518 Pro Key Programmer.
Lonsdor LT21-07 Key Features:
- Designed for newer Lexus 8A-B6 smart key applications
- Supports compatible Lexus smart keys using Board No. 6100
- Configurable frequency and button values
- Supports 312.09 / 314.35 MHz and 433.58 / 434.42 MHz
- Default frequency: 312.09 / 314.35 MHz
- Compatible with Lonsdor smart key generation devices
- Designed for professional automotive locksmith and key programming use
Lonsdor LT21-07 Supported Lexus Smart Key Type:
- Lexus Smart Key 8A-B6
- Supported Board No. 6100
Which Lexus Models Support the Lonsdor LT21-07 8A-B6 Smart Key PCB?:
Current Lonsdor LT21-07 and Lexus 8A-B6 coverage includes supported newer applications such as:
- Lexus RX Series
- Lexus TX Series
- Lexus NX Series
- Lexus UX 350 Series
- Lexus LX600 – selected 8A-B6 applications
- Lexus NX200 / NX250 / NX260 – selected newer 8A-B6 applications
- Lexus NX350 / NX350h – selected newer 8A-B6 applications
- Lexus NX400h+ / NX450h+ – selected newer 8A-B6 applications
- Lexus RX350h / RX500h – selected newer 8A-B6 applications
LT21-07 is mainly designed for newer 2025+ Lexus 8A-B6 applications. Additional supported models may be added through future Lonsdor software updates.
Lonsdor LT21-07 Supported Board Number:
The LT21-07 supports compatible Lexus smart key applications using Board No. 6100.
Confirm the original smart key board number and key design before generating the replacement PCB.
Lonsdor LT21-07 Supported Frequencies:
312.09 / 314.35 MHz and 433.58 / 434.42 MHz
The default LT21-07 configuration is 312.09 / 314.35 MHz. The frequency can be changed to the supported configuration required for the vehicle.
How to Change the Lonsdor LT21-07 Frequency & Button Configuration:
The LT21-07 supports configurable frequency and button values for compatible Lexus applications. This allows one PCB to be prepared for different supported smart key configurations without stocking a separate board for every frequency and button layout.
Use a compatible Lonsdor smart key generation device to select the required frequency and button values before generating the PCB.
Lonsdor LT21-07 Compatible Key Programmers:
- Lonsdor KW100 Smart Key Generator – smart key generation and configuration
- Lonsdor K518 Pro Key Programmer – smart key generation and supported vehicle programming
- Lonsdor K518 Series – older generation device with supported functions
For more Lonsdor key programmers, smart keys and accessories, view the complete Lonsdor Key Programmer & Smart Key Collection.
How to Generate the Lonsdor LT21-07 Lexus Smart Key PCB:
The LT21-07 must be configured for the required Lexus 8A-B6 smart key application before vehicle programming.
- Identify the original Lexus smart key: Confirm the 8A-B6 system, Board No. 6100, required frequency and button layout.
- Select a compatible Lonsdor device: Use the KW100, K518 Pro or supported K518 Series device with updated smart key generation software.
- Open the smart key generation function: Select the compatible Lexus 8A-B6 / LT21-07 generation option available on the device.
- Set the required frequency: Choose 312.09 / 314.35 MHz or 433.58 / 434.42 MHz according to the original key specification.
- Set the button configuration: Select the required button values for the compatible Lexus smart key design.
- Generate and verify the PCB: Complete the generation process and confirm the frequency and key configuration before vehicle programming.
Generating the LT21-07 prepares the PCB for the required smart key configuration. Vehicle programming is a separate procedure and requires supported Lexus immobilizer functions.
Lonsdor LT21-07 Lexus 8A-B6 Add Key Requirements:
For supported newer Lexus 8A-B6 vehicles, current Lonsdor coverage supports Add Key programming using compatible K518 programming devices.
- Lonsdor LT21-07 generated smart key PCB
- Lonsdor K518 Pro or supported K518 Series programmer
- Lonsdor FP30 30-pin cable for supported rolling-PIN procedures
- Latest compatible Lexus 8A-B6 software
Current coverage supports Add Key only for this newer 8A-B6 procedure. All Keys Lost is not currently supported.
Lonsdor Lexus 8A-B6 Software, Activation & Credit Requirements:
Vehicle programming on newer Lexus 8A-B6 systems may require the applicable Toyota/Lexus new-model function to be enabled on the Lonsdor programmer.
Current Lonsdor procedures may require online authorization and credits for supported Add Key operations. K518 Pro users with a valid annual subscription may have the required new-model function available through the latest software update, while other devices or account conditions may require separate activation.
Check the current software version, activated functions and available credits on the Lonsdor device before starting vehicle programming.
Note: PCB board only. Smart key housing, emergency key blade and battery are not included unless otherwise specified.
Lonsdor LT21-07 Package Includes:
1 × Lonsdor LT21-07 Lexus 8A-B6 Smart Key PCB Board
Lonsdor LT21-07 Frequently Asked Questions:
What is the Lonsdor LT21-07 Smart Key PCB?
The Lonsdor LT21-07 is a configurable smart key PCB designed for supported newer Lexus vehicles using the 8A-B6 smart key system and compatible Board No. 6100 applications.
Which Lexus models support the Lonsdor LT21-07?
Supported applications include selected newer Lexus RX, TX, NX, UX 350 and LX600 models using compatible 8A-B6 smart key systems. Coverage may expand through future Lonsdor software updates.
What board number does the Lonsdor LT21-07 support?
The LT21-07 supports compatible Lexus smart key applications using Board No. 6100.
Which frequencies does the Lonsdor LT21-07 support?
The LT21-07 supports 312.09 / 314.35 MHz and 433.58 / 434.42 MHz. The default configuration is 312.09 / 314.35 MHz.
Can the Lonsdor LT21-07 frequency and button values be changed?
Yes. The LT21-07 supports configurable frequency and button values for compatible Lexus smart key applications.
Which Lonsdor devices support the LT21-07?
The LT21-07 can be generated using the Lonsdor KW100 Smart Key Generator, Lonsdor K518 Pro Key Programmer and supported older K518 Series devices.
How do I generate a Lonsdor LT21-07 smart key PCB?
Confirm the Lexus 8A-B6 system, Board No. 6100, required frequency and button configuration, then use a compatible Lonsdor device to generate the LT21-07 before vehicle programming.
Is the Lonsdor FP30 cable required for the LT21-07?
The FP30 cable is not required simply to generate the LT21-07 PCB. It is used for supported newer Lexus 8A-B6 vehicle programming procedures that require the rolling-PIN bypass process.
Does Lexus 8A-B6 support Add Key or All Keys Lost with Lonsdor?
Current Lonsdor coverage supports Add Key for the newer Lexus 8A-B6 procedure. All Keys Lost is not currently supported for this specific system.
Lonsdor LT21-07 Smart Key PCB 8A+B6 For Lexus Adjustable Frequency 4Buttons
Specifications:
| Product Code | ABK-2888-LT21-07 |
| Manufacturer | Lonsdor [Genuine] |
| Buttons Count | 4Buttons |
| Key Blade | Optional ABK-1654 |
| OEM Part Number | LT21 LT21-07 |
| Keyless Go | Yes |
| Battery | CR2032 ABK-540-2032 |
| Condition | Brand New |
Supported Models:
| BRAND | MODEL | FROM | TO |
| LEXUS | RX | 2024 | 2026 |
| LEXUS | TX | 2024 | 2026 |
| LEXUS | NX | 2024 | 2026 |
| LEXUS | UX | 2024 | 2026 |
| LEXUS | ALL MODELS | 2024 | 2026 |
Item Specifications:
- Product Code: ABK-2888-LT21-07
- Manufacturer: Lonsdor [Genuine]
- Buttons Count: 4Buttons
- Key Blade: Optional ABK-1654
- OEM Part Number: LT21 LT21-07
- Keyless Go / Proximity / Smart Function: Yes
- Battery: CR2032 ABK-540-2032
Fitments:
- LEXUS RX 2024-2026
- LEXUS TX 2024-2026
- LEXUS NX 2024-2026
- LEXUS UX 2024-2026
- LEXUS ALL MODELS 2024-2026
Note: No returns or refunds on smart keys and remotes. Please confirm compatibility before purchasing



